Air quality index [µg/m3]:
excellent ≤ 12
good ≤ 36
lightly polluted ≤ 60
moderately polluted ≤ 84
heavily polluted ≤ 120
severely polluted > 120
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
180020goodexcellent41excellent
170020goodexcellent41excellent
160014goodexcellent21excellent
150012excellentexcellent21excellent
140011excellentexcellent21excellent
13009excellentexcellent21excellent
120011excellentexcellent31excellent
110011excellentexcellent31excellent
100017goodexcellent41excellent
090021goodexcellent51excellent
080029goodexcellent51excellent
070034goodexcellent51excellent
060045lightly pollutedexcellent51excellent
050038lightly pollutedexcellent51excellent
040036goodexcellent51excellent
030040lightly pollutedexcellent51excellent
020043lightly pollutedexcellent51excellent
010047lightly pollutedexcellent51excellent
000051lightly pollutedexcellent51excellent
230052lightly pollutedexcellent51excellent
220036goodexcellent41excellent
210023goodexcellent41excellent
200022goodexcellent31excellent
190019goodexcellent31excellent